kernel-linux: change wording to make clear linux-fslc has bugfixes

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
u-boot: change wording to make clear we have bugfixes in u-boot-fslc

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
machine-list: Update

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>